Pullup ticket #5279 - requested by sevan
math/fricas: build fix

Revisions pulled up:
- math/fricas/options.mk                                        1.7

---
  Module Name:    pkgsrc
  Committed By:  asau
  Date:          Thu Apr 13 13:00:43 UTC 2017

  Modified Files:
          pkgsrc/math/fricas: options.mk

  Log Message:
  Handle MACHINE_GNU_PLATFORM when generating PLIST.

(bsiegert)